Home / 1,281,910.80-1,769,273.55-823,598.29

Finding the Fourth Proportional to 1,281,910.80, 1,769,273.55 and 823,598.29

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Solution

The fourth proportional to 1,281,910.80, 1,769,273.55 and 823,598.29 is: 1,136,717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,910.80 : 1,769,273.55 = 823,598.29 : x
  2. Step 2: Convert to fraction form
    1,281,910.80/1,769,273.55 = 823,598.29/x
  3. Step 3: Cross multiply
    1,281,910.80x = 1,769,273.55 × 823,598.29
  4. Step 4: Simplify right side
    1,281,910.80x = 1,457,170,670,322.23
  5. Step 5: Solve for x
    x = 1,457,170,670,322.23/1,281,910.80
  6. Step 6: Final answer
    x = 1,136,717.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.